Lockup chases



Dec. 22, 1942. l

W. G. BRADSHAW LOCK-UP CHASES Filed Dec. 24, 1941 INV ENTOR. Willie 1n. G. Bald; cha. w

BY Hwy JIM/153K@ Hgenf Patented Dec. 22, 1942 UNIT STATES TENT CFFICE 1 Claim.

My invention relates to improvements in lockup chases, and the objects of my improvement are, rst, to afford facilities to hold the type set more firmly and exactly in the proper position during the printing process; second, to reduce the number of parts for holding type set to a minimum; and, third to save labor in adapting the type set to the lock-up chase.

I attain these objects by mechanism illustrated in the accompanying drawing, in which- Figure l. is a plan View of the lock-up chase holding type set;

Figure 2, a side elevation of the lock-up chase holding type set;

Figure 3, a vertical section of one of the bars used in connection with my lock-up chase, on the line 33, Fig. 4;

Figure 4, a detailed cross section oi the bar on the line 4-l, Fig. 3;

Figure 5, a side elevation of a key used for my device; and

Figure 6, a plan view of this key.

Similar numerals refer to similar throughout the several views.

The rectangular frame I, preferably made from iron, has teeth 2 of equal size on its inner sides. The number oi teeth on opposing sides is the same, and a numeral is placed on each tooth. These numerals are arranged in such a manner that the teeth which are exactly opposite have the same numerals, as can be seen in Fig. 1. The numerals are preferably engraved on the face of the frame. I

Two vertical bars 3 and two horizontal bars 4 with teeth 5 on each end are adapted to be placed perpendicularly between the sides of the frame I, whereby the teeth 5 engage into teeth 2 of the frame I. The frame I is of such height that the bars Il when placed over the bars 3, crossing the latters in right angles, (Figs. l and 2) do not project over the frame I. If the bars 4 are placed in the frame I at some distance from each other, and if the bars 3 are also placed in the frame I at some distance from each other, the four bars form a chase for the type set 6.

In order to hold the type set ii so that no type can shift from its position during the printing process, the width of the bars is adjustable. This is accomplished by constructing the bars 3 and 4 preferably as follows: Each bar consists parts of a U-shaped rib 'I (Figs. 3 and 4) having a web t and anges 9, with teeth 5 on each end of the flanges 9, and with slots I0 and an aperture H in each iiange; of a rod I2 having on its upper side teeth I4 and ratchets I5 and being lengthwise sli'dable Within the rib 'I on the latters bottom; of a rod I6 having ratchets I1 on its lower side adjacent the rod I2; and of at least two pins I8 secured to the rod I6 by riveting, soldering, or in any other suitable manner, and extending through the slots I0 in the flanges 9, thus preventing the rod IS from any lengthwise movement and restricting its lateral movement. A key E9, shown in Figs. 5 and 6, the shaft 20 of which is provided with teeth 2l, can be inserted in the apertures I I, whereby the key teeth 2i gear into the teeth I4 of the rod I2, so that the rod i2 can be shifted lengthwise by turning the key. It is obvious from Fig. 3 that the lengthwise shifting of the rod I2 causes a lateral movement of the rod I6. Thus, by turning the key I9, the rod I6 can be pressed against-l the type set, and if the rods I6 in all four bars have been pressed against the type set 6 as described, the immobility of each type during the printing process is assured.

In order to secure the bars against any change in their position, two fish plates 22 are pivotally connected to the face of the frame I by means of bolts 23. As shown in Figs. 1 and 2 bolts 24, opposite the bolts 23, keep the plates 22 in their proper positions during the printing process.

It must be understood that various changes. as to size, shape and arrangement of the parts can be eiectuated without departing from the spirit of the invention or the scope of the annexed claim.

What I claim as my invention and desire to secure by Letters Patent of the United States is:

In a lock-up chase the combination of a frame having numbered teeth on its inner sides, with two fish plates each on the face of one of two opposite frame sides projecting over the teeth and pivotally connected to one frame corner, means of securing the said plates on the opposite end of a side, four bars having teeth on each end adapted to fit into teeth on the inner frame sides, and means for adjusting the width of the said bars, substantially as described.

WILLIAM G. BRADSHAW. 

